NUR 242
NUR 242 EXAM 4 – CARDIOVASCULAR QUESTIONS AND ANSWERS
What is the equation for cardiac output? - correct answer CO =
HR x SV
What is preload? - correct answer the heart is being stretched
out
What does preload reflect? - correct answer how much fluid is
in the heart
What is afterload? - correct answer resistance the ventricle
must overcome to eject blood
,NUR 242
Example of increased preload - correct answer CHF
Example of increased afterload - correct answer hypertension
What is blood pressure? - correct answer force of blood
against vessel walls
What is systolic blood pressure? - correct answer amount of
pressure generated by the left ventricle to distribute
blood into the aorta with each CONTRACTION of the
heart
What is diastolic blood pressure? - correct answer amount of
pressure against the arterial walls during RELAXATION of
the heart
What is the equation for MAP? - correct answer 2(diastolic) +
systolic / 3
What is the minimum the MAP can be to maintain
adequate perfusion? - correct answer no less than 60
, NUR 242
What is another name for orthostatic changes? - correct
answer postural hypotension
A decrease of more than 20 mmHg systolic or more than
10 mmHg diastolic pressure with an increase in heart rate
- correct answer orthostatic change
How do you measure orthostatic changes? - correct answer
Check blood pressure in the following order: after laying
supine for 3 minutes, after sitting for 1 minute and
standing **Keep cuff in same place**
What precautions are important for a patient
experiencing orthostatic changes? - correct answer fall
Who is at risk for orthostatic changes? - correct answer
prolonged bed rest, medications, dehydration, volume
depletion, autonomic nervous system disorders
NUR 242 EXAM 4 – CARDIOVASCULAR QUESTIONS AND ANSWERS
What is the equation for cardiac output? - correct answer CO =
HR x SV
What is preload? - correct answer the heart is being stretched
out
What does preload reflect? - correct answer how much fluid is
in the heart
What is afterload? - correct answer resistance the ventricle
must overcome to eject blood
,NUR 242
Example of increased preload - correct answer CHF
Example of increased afterload - correct answer hypertension
What is blood pressure? - correct answer force of blood
against vessel walls
What is systolic blood pressure? - correct answer amount of
pressure generated by the left ventricle to distribute
blood into the aorta with each CONTRACTION of the
heart
What is diastolic blood pressure? - correct answer amount of
pressure against the arterial walls during RELAXATION of
the heart
What is the equation for MAP? - correct answer 2(diastolic) +
systolic / 3
What is the minimum the MAP can be to maintain
adequate perfusion? - correct answer no less than 60
, NUR 242
What is another name for orthostatic changes? - correct
answer postural hypotension
A decrease of more than 20 mmHg systolic or more than
10 mmHg diastolic pressure with an increase in heart rate
- correct answer orthostatic change
How do you measure orthostatic changes? - correct answer
Check blood pressure in the following order: after laying
supine for 3 minutes, after sitting for 1 minute and
standing **Keep cuff in same place**
What precautions are important for a patient
experiencing orthostatic changes? - correct answer fall
Who is at risk for orthostatic changes? - correct answer
prolonged bed rest, medications, dehydration, volume
depletion, autonomic nervous system disorders
